REVIEW 6 cited by
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
Structure and evolution of low-mass stars
read the original abstract
We present extensive calculations of the structure and the evolution of low-massstars in the range 0.07-0.8 $\msol$, for metallicities $-2.0\le \mh \le 0.0$. These calculations are based on the most recent description of the microphysics characteristic of these dense and cool objects and on the lattest generation of grainless non-grey atmosphere models. We examine the evolution of the different mechanical and thermal properties of these objects as a function of mass and metallicity. We also demonstrate the inaccuracy of grey models and $T(\tau)$ relationships under these conditions. We provide detailed tables of the mass-radius-luminosity-effective temperature relations for various ages and metallicities, aimed at calibrating existing or future observations of low-mass stars and massive brown dwarfs. We derive new hydrogen-burning minimum masses, within the afore-mentioned metallicity range. These minimum masses are found to be smaller than previous estimates, a direct consequence of non-grey effects. At last, we examine the evolution of the abundance of light elements, $Li, Be$ and $B$, as a function of age, mass and metallicity.
Forward citations
Cited by 6 Pith papers
-
Testing the reliability of magnetic field strength measurements for M dwarfs
Synthetic spectra tests show Zeeman broadening recovers M dwarf magnetic field strengths more reliably with joint abundance fitting and WAIC selection than with free line strengths or BIC/AIC, which underestimate by 3...
-
Stellar flare-driven evolution of primordial early exo-Earth atmospheres: Insights from a Young M Dwarf Flare model
YMDF flare model applied to VULCAN shows young M dwarf activity stresses primordial atmospheres more than older models, with possible lasting changes in chemical mixing ratios across water vapor scenarios.
-
Stellar flare-driven evolution of primordial early exo-Earth atmospheres: Insights from a Young M Dwarf Flare model
Young M dwarf flares exert greater chemical stress on primordial exo-Earth atmospheres than previous models, with potential for lasting changes in mixing ratios especially for low-abundance species.
-
RedDots: Magnetic field of the nearby active M dwarf GJ 729, and a search for companions
GJ 729 exhibits a weak, evolving large-scale magnetic field (50-145 G) and a persistent ~7 d radial velocity signal that could be a ~1.5-2 Earth-mass planet or residual stellar activity.
-
The Sun's chemical peculiarity: disentangling Galactic chemical evolution and planetary engulfment in solar twins
Reanalysis of 79 solar twins indicates the Sun's chemical peculiarity is largely explained by Galactic chemical evolution, with 2-6 candidates possibly showing planetary engulfment.
-
Mapping the Landscape of M Dwarf X-ray Flares: New Discoveries in Context
New X-ray flare detections from M dwarfs combined with literature data yield flare frequency constraints and an upper limit of 0.5-30 Myr on atmospheric loss times for habitable planets orbiting them.
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.